<Query Kind="Statements">
  <Namespace>System.Collections.ObjectModel</Namespace>
  <Namespace>System.Collections.Specialized</Namespace>
</Query>

ObservableCollection<int> _collection = [];
_collection.CollectionChanged += CollectionChanged;

void CollectionChanged(object? sender, NotifyCollectionChangedEventArgs e)
{
    e.Dump();
}

_collection.Add(1);
_collection.Add(2);
_collection.Remove(2);
_collection.Remove(1);
